CN211453281U - Large granule material penetrant unit - Google Patents
Large granule material penetrant unit Download PDFInfo
- Publication number
- CN211453281U CN211453281U CN201922479039.7U CN201922479039U CN211453281U CN 211453281 U CN211453281 U CN 211453281U CN 201922479039 U CN201922479039 U CN 201922479039U CN 211453281 U CN211453281 U CN 211453281U
- Authority
- CN
- China
- Prior art keywords
- water
- barrel
- permeameter
- pressure measuring
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A large granular material infiltration device comprises a water supply device, an infiltration instrument and a measuring device which are detachably connected together; the water supply equipment comprises a water tank arranged on a height adjusting support, the water tank is communicated with a barrel body of the permeameter, the size of the barrel body is matched with the particle size of a large granular material to be tested, a lower porous plate is arranged at the lower part in the barrel, the space in the barrel is partitioned by the lower porous plate, the large granular material to be tested is placed on the lower porous plate, a plurality of groups of pressure measuring holes are symmetrically arranged at two sides of the barrel body above the lower porous plate, a plurality of sensor arrangement holes are arranged on the barrel body corresponding to measuring areas, seepage flow collecting holes are respectively arranged at different heights on the upper part of the barrel body, and the seepage flow collecting holes are; the measuring equipment comprises a pressure measuring pipe communicated with the pressure measuring hole, a scale sticker is arranged corresponding to the pressure measuring pipe, when the water level inside the barrel of the permeameter exceeds the pressure measuring hole, the water heads of different positions of the granular material are read by the measuring equipment. The utility model discloses can reduce the error of experimental survey data.
Description
Technical Field
The utility model belongs to geotechnical test field, concretely relates to large granule material penetrant unit.
Background
The penetration apparatus is a device for penetration test, mainly used for determining parameters such as permeability coefficient and section average penetration rate of a certain particulate material, various penetration apparatuses for penetration test are available at present, but the inner diameter of a transparent cylinder of the penetration apparatus of the penetration apparatuses is generally smaller, and although the penetration test of a material with a smaller particle size can be satisfied, a larger size effect is often generated when the penetration test is performed on a large particulate material by using the penetration apparatus, so that a test result has larger deviation, and therefore the existing penetration apparatus cannot meet the requirement of the indoor penetration test of the large particulate material. In addition, most of the traditional infiltration devices are integrated, and the base is usually made of iron, so that the traditional infiltration device is large in mass, difficult to move and inconvenient to operate. Along with the development of science and technology, not only need to have the penetrant unit that can carry out small granule material penetration test in the trade, still need to have easy operation and can carry out the penetrant unit that large granule material penetration test. Therefore, the design of a large granular material infiltration apparatus is urgently needed to be solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the indoor penetration test's of large granular material needs and the inconvenient problem of operation removal can not be satisfied to penetrant unit among the above-mentioned prior art, provide a large granular material penetrant unit, the device easy operation, it is durable reliable, the whole infiltration process of observation large granular material that can be more convenient to can reduce the error of the experimental data of surveying.
In order to achieve the above object, the large granular material infiltration apparatus of the present invention has the following technical solutions:
comprises a water supply device, a permeameter and a measuring device which are detachably connected together; the water supply equipment comprises a water tank arranged on a height adjusting support, the water tank is communicated with a barrel of the permeameter, the size of the barrel is matched with the particle size of a large granular material to be tested, a lower porous plate is arranged at the lower part in the barrel of the barrel, the space in the barrel is partitioned by the lower porous plate, the large granular material to be tested is placed on the lower porous plate, a plurality of groups of pressure measuring holes are symmetrically arranged at two sides of the barrel above the lower porous plate, a plurality of sensor arrangement holes are arranged in the barrel corresponding to measurement areas, seepage flow collecting holes are respectively arranged at different heights on the upper part of the barrel, and the seepage flow collecting holes are connected with a seepage flow collecting; the measuring equipment comprises a pressure measuring pipe communicated with the pressure measuring hole, a scale sticker is arranged corresponding to the pressure measuring pipe, when the water level inside the barrel of the permeameter exceeds the pressure measuring hole, the measuring equipment reads water heads of different positions of the granular material.
Preferably, in an embodiment of the large granular material infiltration apparatus of the present invention, the height adjustment bracket is provided with a plurality of fixing screw holes, and the water tank is mounted on different fixing screw holes through fixing screws.
Preferably, in an embodiment of the large granular material infiltration apparatus of the present invention, the water tank is provided with a water inlet, a water outlet and an overflow port, the water inlet is connected to the water pump, the water outlet is communicated with the cylinder of the infiltration instrument, and the overflow port is connected to the water collection tank; the water flows into the water collecting tank through the overflow port, and the water level in the water collecting tank is kept constant through the water pump.
Preferably, in an embodiment of the large granular material infiltration apparatus of the present invention, the water supply device, the infiltration instrument and the measurement device are detachably connected through a flexible water pipe; the water tank, the water pump and the water collecting tank are detachably connected through a flexible water pipe respectively, and the seepage flow collecting hole and the seepage flow collecting box are detachably connected through a flexible water pipe.
As preferred the utility model discloses in an embodiment of large granular materials penetrant unit, the barrel of permeameter adopts transparent drum, and measuring equipment has the transparent glass board of the fixed all piezometer tubes simultaneously, and the transparent glass board is made for organic material, and the scale sticker is posted on the transparent glass board, the scale sticker adopt millimeter level scale sticker.
Preferably, in an embodiment of the large granular material infiltration apparatus of the present invention, the diameter of the cylinder is 300 mm.
Preferably, in an embodiment of the large granular material infiltration apparatus of the present invention, the height adjustment support, the cylinder of the permeameter, and the bottom of the pressure measurement pipe of the measurement device are all provided with a base.
Preferably, in an embodiment of the large granular material infiltration apparatus of the present invention, the cylinder surface of the infiltration instrument is provided with a scale mark for displaying the placement height of the large granular material to be tested.
Compared with the prior art, the utility model discloses following beneficial effect has: adopt detachable water supply equipment, permeameter and the measuring equipment who links together, the removal and the laying of the whole test device of being convenient for, the barrel size of permeameter suits with the particle diameter that awaits measuring the large granular material, can satisfy the indoor penetration test of large granular material, has reduced size effect, has reduced the error of the data of surveying of experiment. The upper part of the cylinder body is respectively provided with seepage flow collecting holes at different heights, so that the seepage tests of seepage paths with different lengths are facilitated. The two sides of the cylinder are symmetrically provided with a plurality of groups of pressure measuring holes, the pressure measuring pipes of the measuring equipment are respectively communicated with the pressure measuring holes correspondingly, and the average value of the water head differences measured by the plurality of groups of pressure measuring pipes can be taken as the water head loss of water flow passing through the section of path during calculation, so that the water head measuring data are more stable and accurate. The large granular materials to be tested are placed on the lower water permeable plate, water flows through the large granular materials to be tested from bottom to top, when the water level exceeds the height of the pressure measuring hole, water columns with a certain height can appear in the pressure measuring pipe, the water flows continuously flow upwards and flow out through the seepage flow collecting hole, the height of the water tank is kept unchanged within a set time period at the moment, a saturated sample is obtained by a water head saturation method, when the seepage flow is kept stable, water heads at different positions of the granular materials are obtained by reading the height of the water columns in the pressure measuring pipe, and finally, the hydraulic slope, the permeability coefficient of the granular materials and the average penetration rate of the section of the hydraulic slope can be obtained by calculating the Darcy's law. The penetration test under the next stage of water head can then be continued by adjusting the height of the water tank and repeating the implementation. The utility model is simple in operation, durable reliable, the whole infiltration process of observation large granular material that can be more convenient makes the flood peak measuring result more accurate, provides very big help for large granular material's indoor penetration test.
Further, the barrel of permeameter adopts transparent drum, and measuring equipment has the transparent glass board of the fixed all piezometric tubes simultaneously, and the scale sticker is posted on transparent glass board, and the scale sticker adopts millimeter level scale sticker, not only is convenient for observe granular material's whole infiltration process, also does benefit to the hydrohead that the different positions of accurate reading granular material, makes the error of device littleer.
Drawings
FIG. 1 is a schematic view of the overall structure of the large granular material permeating device of the present invention;
in the drawings: 1-water supply equipment base; 2-height adjusting bracket; 3-fixing screw holes; 4-a water tank; 5-fixing screws; 6-water outlet; 7-a water inlet; 8-an overflow port; 9-a flexible water pipe; 10-a water pump; 11-a water collection tank; 12-permeameter base; 13-lower permeable plate; 14-pressure measuring hole; 15-sensor layout holes; 16-seepage flux collecting holes; 17-a seepage flow collecting box; 18-a cylinder body; 19-measuring device base; 20-a transparent glass plate; 21-piezometric tube; 22-graduated paster.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the large granular material infiltration apparatus of the present invention is composed of three parts, namely, a water supply device, an infiltration instrument and a measuring device, and the three parts can be disassembled and assembled. The water supply equipment structure includes water supply equipment base 1, and altitude mixture control support 2 is installed to water supply equipment base 1 top, and altitude mixture control support 2 is pole setting formula bearing structure, is provided with fixed screw hole 3 on the altitude mixture control support 2, is provided with water tank 4 between the pole setting of altitude mixture control support 2 and fixes to altitude mixture control support 2 through fixed screw hole 3 and fixed screw 5. The bottom of water tank 4 is provided with delivery port 6, and the lateral wall of water tank 4 is provided with water inlet 7 and gap 8, and delivery port 6 passes through flexible water pipe 9 and links to each other with the transparent barrel 18 of 300 mm's diameter infiltration appearance, and water inlet 7 passes through flexible water pipe 9 and is connected with water pump 10, and gap 8 passes through flexible water pipe 9 and links to each other with header tank 11.
The permeameter structure comprises a permeameter base 12, a transparent cylinder 18 is installed above the permeameter base 12, a lower permeable plate 13 is arranged on the lower portion of the inner cavity of the cylinder 18, pressure measuring holes 14 are symmetrically installed on the left side and the right side of the cylinder 18, a sensor laying hole 15 is installed on the right side of the cylinder 18, a seepage collecting hole 16 is formed in the left side of the cylinder 18, and the seepage collecting hole 16 is connected with a seepage collecting box 17 through a flexible water pipe 9. The cylinder 18 is connected to a pressure measuring tube 21 via a flexible water tube 9 via a pressure measuring tap 14.
Measuring equipment structure includes measuring equipment base 19, and transparent glass board 20 is installed to measuring equipment base 19 top, and transparent glass board 20 is organic material board, installs pressure-measuring pipe 21 and is equipped with millimeter level scale sticker 22 on the transparent glass board 20.
The utility model discloses in the middle of foretell large granular materials penetrant unit embodiment, fix water tank 4 on altitude mixture control support 2 in order to obtain different water tank heights through installation fixed screw 5 on fixed screw hole 3, water tank 4 is in the same place through the direct looks of barrel 18 of delivery port 6 and flexible water pipe 9 and infiltration appearance, and flexible water pipe 9 can dismantle.
The utility model discloses in the middle of foretell large granular materials penetrant unit embodiment, water pump 10 passes through flexible water pipe 9 and water inlet 7 links to each other with water tank 4 to in the middle of being connected to the barrel 18 of permeameter through delivery port 6 and flexible water pipe 9, be provided with gap 8 on the lateral wall of water tank 4, water level height invariant in the water tank can be guaranteed in the continuous operation of water pump 10.
The utility model discloses in the middle of foretell large granular materials penetrant unit embodiment, whole penetrant unit is made by transparent organic glass completely, and the equipment is dismantled to three most accessible disconnection of water supply equipment, infiltration appearance and measuring equipment or connection flexible water pipe 9. The diameter of the cylinder 18 of the permeameter is 300mm, which can meet the indoor permeation test of large particle materials, and the number of the permeation flow collecting holes 16 arranged on the permeameter is 2, so as to carry out the permeation test of the permeation flow paths with different lengths.
The utility model discloses in the middle of foretell large granular materials penetrant unit embodiment, the quantity of the pressure cell 14 of establishing is 4 and symmetrical arrangement in the both sides of the transparent drum 18 of infiltration appearance to link to each other with pressure-measuring pipe 21 through flexible water pipe 9, get the poor average value of two pairs of pressure-measuring pipes measuring head during calculation and regard as rivers through the head loss of this section route, measured data is more stable, accurate.
The utility model discloses large granular material penetrant unit's use as follows:
firstly, a water supply device, a permeameter and a measuring device are connected together through a flexible water pipe 9, the taken granular material is placed in a cylinder 18 of the permeameter, and the surface of the cylinder 18 is provided with scale marks for displaying the placement height of the large granular material to be tested until the large granular material is preset height. The water tank 4 is fixed to a certain position of the height-adjusting bracket 2 by a fixing screw 5.
Then, the water supply pump 10 is powered on, water is pumped into the water tank 4 through the flexible water pipe 9 and the water inlet 7, water flows into the water collecting tank 11 through the overflow port 8 and the flexible water pipe 9, the water level in the water tank is kept constant, and the water flows into the barrel 18 of the permeameter through the water outlet 6 and the flexible water pipe 9 and then flows into the granular materials through the lower permeable plate 13;
water flows through the granular materials from bottom to top, when the water level of the granular materials exceeds the height of the pressure measuring hole 14, water columns with certain height appear in the pressure measuring pipe 20, the water flows continuously upwards and flows into the seepage quantity collecting box 17 through the seepage quantity collecting hole 16 and the flexible water pipe 9, at the moment, the height of the water tank 4 is kept unchanged within 2 hours, and a saturated sample is obtained by a water head saturation method;
after obtaining a saturated sample, when the seepage collected by the seepage collecting box 17 in a certain time is stable, obtaining water heads at different positions of the granular material by reading the height of a water column in the piezometer tube 20, and calculating the hydraulic slope, the permeability coefficient of the granular material and the average permeability speed of the section under the hydraulic slope through Darcy's law;
and then, adjusting the height of the water tank 4 through the height adjusting bracket 2, the fixing screw hole 3 and the fixing screw 5 to perform a penetration test under the action of a next stage of water head, and repeating the implementation process.
When the sample in the transparent cylinder 18 has horizontal cracks under the action of the water head at the height of a certain water tank 4, the spring hole continuously develops to the deep part, the seepage flow collected by the seepage flow collecting box 17 continuously increases, and two thirds of the surface area of the surface has fine particle jumping or group soil particle surging, the sample is considered to be damaged, and the seepage test is finished at the moment.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited to the above description, and those skilled in the art should understand that any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A large granular material infiltration apparatus, comprising: comprises a water supply device, a permeameter and a measuring device which are detachably connected together; the water supply equipment comprises a water tank (4) arranged on a height adjusting support (2), the water tank (4) is communicated with a barrel (18) of a permeameter, the size of the barrel (18) is matched with the particle size of large granular materials to be tested, a lower water permeable plate (13) is arranged at the lower part in the barrel of the barrel (18), the space in the barrel is partitioned by the lower water permeable plate (13), the large granular materials to be tested are placed on the lower water permeable plate (13), a plurality of groups of pressure measuring holes (14) are symmetrically arranged at two sides of the barrel (18) above the lower water permeable plate (13), a plurality of sensor arrangement holes (15) are arranged on the barrel (18) corresponding to a measuring area, seepage flow collecting holes (16) are respectively arranged at different heights at the upper part of the barrel (18), and the seepage flow collecting holes (16) are connected with a seepage flow; the measuring equipment comprises a pressure measuring pipe (21) communicated with a pressure measuring hole (14), a scale sticker (22) is arranged corresponding to the pressure measuring pipe (21), when the water level inside a barrel body (18) of the permeameter exceeds the pressure measuring hole (14), water heads of different positions of the granular materials are read by the measuring equipment.
2. The large particulate material infiltration apparatus of claim 1, wherein: the height adjusting support (2) is provided with a plurality of fixing screw holes (3), and the water tank (4) is installed on different fixing screw holes (3) through fixing screws (5).
3. The large particulate material infiltration apparatus of claim 1, wherein: the water tank (4) is provided with a water inlet (7), a water outlet (6) and an overflow port (8), the water inlet (7) is connected with the water pump (10), the water outlet (6) is communicated with the barrel (18) of the permeameter, and the overflow port (8) is connected with the water collecting tank (11); the water pump (10) keeps the water level in the water tank (4) constant.
4. The large granular material infiltration apparatus of claim 3, wherein:
the water supply equipment, the permeameter and the measuring equipment are detachably connected through a flexible water pipe (9);
the water tank (4) is detachably connected with the water pump (10) and the water collecting tank (11) through flexible water pipes (9), and the seepage flow collecting hole (16) is detachably connected with the seepage flow collecting tank (17) through the flexible water pipes (9).
5. The large particulate material infiltration apparatus of claim 1, wherein: transparent drum is adopted in barrel (18) of permeameter, and measuring equipment has transparent glass board (20) of fixed all piezometer tubes (21) simultaneously, and mark sticker (22) are posted on transparent glass board (20), mark sticker (22) adopt millimeter level scale sticker.
6. The large particulate material infiltration apparatus of claim 1, wherein: the diameter of the cylinder (18) is 300 mm.
7. The large particulate material infiltration apparatus of claim 1, wherein: and bases are arranged at the bottoms of the height adjusting support (2), the barrel (18) of the permeameter and the pressure measuring pipe (21) of the measuring equipment.
8. The large particulate material infiltration apparatus of claim 1, wherein: the surface of a cylinder body (18) of the permeameter is provided with scale marks for displaying the placement height of the large granular material to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922479039.7U CN211453281U (en) | 2019-12-31 | 2019-12-31 | Large granule material penetrant unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922479039.7U CN211453281U (en) | 2019-12-31 | 2019-12-31 | Large granule material penetrant unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211453281U true CN211453281U (en) | 2020-09-08 |
Family
ID=72297519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922479039.7U Expired - Fee Related CN211453281U (en) | 2019-12-31 | 2019-12-31 | Large granule material penetrant unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211453281U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279930A (en) * | 2021-12-24 | 2022-04-05 | 云南华水投资管理有限公司 | Permeation device |
| CN115683976A (en) * | 2022-10-26 | 2023-02-03 | 中国科学院力学研究所 | Liquid seepage device for long-distance displacement and long-distance seepage method |
| CN116840125A (en) * | 2023-07-05 | 2023-10-03 | 长安大学 | Device and method for testing water permeability anisotropy of road base granule |
-
2019
- 2019-12-31 CN CN201922479039.7U patent/CN211453281U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279930A (en) * | 2021-12-24 | 2022-04-05 | 云南华水投资管理有限公司 | Permeation device |
| CN115683976A (en) * | 2022-10-26 | 2023-02-03 | 中国科学院力学研究所 | Liquid seepage device for long-distance displacement and long-distance seepage method |
| CN115683976B (en) * | 2022-10-26 | 2024-04-12 | 中国科学院力学研究所 | Liquid seepage device for long-distance displacement and long-distance seepage method |
| CN116840125A (en) * | 2023-07-05 | 2023-10-03 | 长安大学 | Device and method for testing water permeability anisotropy of road base granule |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211453281U (en) | Large granule material penetrant unit | |
| CN105588796A (en) | Device for accurately and rapidly determining permeability coefficient of soil | |
| CN110426504A (en) | Karst aquifer sandbox pilot system and method based on tracer waterpower tomographic inversion | |
| CN108332816B (en) | Device and method for measuring exchange water quantity of surface water and underground water of river channel | |
| CN110286074A (en) | Undisturbed soil infiltration coefficient-effecive porosity-specific yield instrument is measured simultaneously | |
| CN105606495B (en) | A kind of experimental provision and its implementation of field measurement undercurrent exchange capacity | |
| CN106053764B (en) | Synclinal structure basin Water Soluble Gas transported simulation experimental method is stored up from being born from | |
| CN108593502A (en) | A kind of groundwater flow modeling device and monitoring method | |
| CN104949903A (en) | Test device and method for simulating uniform diffusion of CO2 in soil | |
| CN217586826U (en) | Accurate test system of multiclass soil horizontal permeability coefficient | |
| CN102680374B (en) | Test device for determining non-saturated soil osmotic parameter | |
| CN208953419U (en) | Novel sand slot seepage flow test device | |
| CN106124735B (en) | Synclinal structure basin Water Soluble Gas transported simulation device is stored up from being born from | |
| CN112986333A (en) | Device for measuring dissolved oxygen and improving measurement stability in variable distance mode | |
| CN114739648B (en) | In-situ field test platform and test method for blocking characteristics of underground drip irrigation system | |
| CN108318664A (en) | Slope runoff-soil body penetration coupled testing method | |
| Reynolds et al. | 3.4. 2 Laboratory Methods | |
| CN211318486U (en) | Surface flow velocity and direction observation device | |
| KR20000012724U (en) | Hydraulic Conductivity Measurement Device for Underground Aquifer Soil Samples | |
| CN204314191U (en) | The device of Fast Measurement coarse-grained soil infiltration coefficient | |
| CN207600525U (en) | A kind of drift dewatering ditch flow monitoring device | |
| CN110197611A (en) | Capillary saturated zone transverse direction interstitial flow demonstration instrument and demenstration method | |
| CN107144513B (en) | Soil moisture infiltration rate testing arrangement | |
| CN114577440B (en) | Physical model for generating and developing dyke base piping and monitoring method | |
| CN214894687U (en) | Capillary water rise height measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20211231 |